CT scans reveal hidden details of ancient copper smelting in early Iran
https://www.profitableratecpm.com/f4ffsdxe?key=39b1ebce72f3758345b2155c98e6709c
About 5,000 years ago, people in what is now Iran began extracting copper from rock by processing ore, an activity known as smelting. This monumental change gave them powerful new technology and may have marked the birth of metallurgy. Soon after, people in different parts of the world were using copper and bronzes (alloys of copper and tin, or copper and arsenic) to produce decorative objects, weapons, tools, and more.
